Troy-Bilt Horse Manual Del Operario página 24

4. To properly sharpen the cutting blades, remove equal
amounts of metal from both ends of the blades along the
cutting edges, parallel to the trailing edge, at a 25°- to 30°
angle. Always grind each cutting blade edge equally to
maintain proper blade balance. See Fig. 7-4.
CAUTION:
previously been sharpened, or if any metal
separation is present, replace the blades with new
ones.
WARNING!
excessive vibration, may damage to the tractor and/
or result in personal injury.
5. Test the blade's balance using a blade balancer. Grind
metal from the heavy side until it balances evenly.
24 s 7— s
ectiOn ervice
Figure 7-3
Figure 7-4
If the cutting edge of the blade has
A poorly balanced blade will cause
NOTE: When replacing the blade, be sure to install the blade with
the side of the blade marked ''Bottom'' (or with a part number
stamped in it) facing the ground when the mower is in the
operating position.
CAUTION:
Use a torque wrench to tighten the
blade spindle hex flange nut to between 70 lbs-ft
and 90 lbs-ft
Changing the Deck Belt
WARNING!
Shut the engine off and remove
ignition key before removing the cutting blade(s) for
sharpening or replacement. Protect your hands by
using heavy gloves when grasping blades and
pulleys.
WARNING!
The V-belts found on your tractor are
specially designed to engage and disengage safely.
A substitute (non-OEM) V-belt can be dangerous by
not disengaging completely. For a proper working
machine, use factory approved belts.
All belts on your tractor are subject to wear and should be
replaced if any signs of wear are present . To change or replace
the deck belt on your tractor, proceed as follows:
1. Lower the deck by moving the deck lift lever into the
bottom notch on the right fender.
2. Carefully remove the belt from around the electric PTO
clutch. See Fig 7-5.
Figure 7-5
3. Note: If there is too much tension on the belt for it to be
easily removed from the electric PTO clutch, carefully
insert a 3⁄8-inch drive ratchet wrench (set to tighten) into the
square hole found in the left-hand deck idler bracket and
pivot it toward the tractor's right side to relieve tension on
the belt. See Fig. 7-6.